Rochester Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Rochester, New York during each month of the year.

The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 60, 70 or 80 °F each month in Rochester, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Rochester, 2010 to 2019
High °F Low °F   High °C Low °C
33 18 January 1 -8
35 19 February 1 -7
43 27 March 6 -3
57 37 April 14 3
71 50 May 22 10
77 57 June 25 14
83 63 July 28 17
80 61 August 27 16
74 54 September 24 12
62 44 October 16 7
48 33 November 9 0
39 26 December 4 -3
59 41 Year 15 5
30-year temperature averages for Rochester, 1991 to 2020
High °F Low °F   High °C Low °C
33 19 January 1 -7
35 20 February 2 -7
44 27 March 6 -3
57 37 April 14 3
69 48 May 21 9
78 57 June 26 14
83 62 July 28 17
81 61 August 27 16
74 54 September 23 12
61 43 October 16 6
49 34 November 10 1
39 25 December 4 -4
58 41 Year 15 5

Days of Hot Weather in Rochester

The hottest days at Rochester mostly have highs in the 80s Fahrenheit. Just eight days a summer on average reach into the 90s F (over 31 °C). Temperatures above 100 °F (38 °C) are not normal in Rochester. July sees the most days with 80 and 90-degree weather here.

Days per month in Rochester of at least 60, 70 or 80 °F
  60 °F
16 °C
70 °F
21 °C
80 °F
27 °C
January 1 0 0
February 1 0 0
March 4 1 0
April 11 5 1
May 25 14 6
June 30 25 12
July 31 30 20
August 31 30 17
September 28 20 7
October 16 6 1
November 6 1 0
December 1 0 0
Year 182 130 64

How Often Rochester Has Cold Temperatures

On the coldest winter nights at Rochester, the thermometer drops to 0 °F (-18 °C) or even lower. Nights that cold occur on average four times a year, most often in January.

On 45 days a year, the temperature here never rises above freezing. Frosty daytime weather can show up as early as November and linger as late as April.

Days per month on average in Rochester when the minimum temperature drops to 10, 20, or 32 °F or below
  10 °F
-12 °C
20 °F
-8 °C
32 °F
0 °C
January 8 18 27
February 6 15 25
March 2 9 23
April 0 0 10
May 0 0 1
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 3
November 0 2 15
December 2 10 25
Year 19 53 129
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

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